Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 8811 1283 15% 0.00 1683 835 50% 6.5
10 Kinds of People 20310 4129 20% 0.01 3423 2481 72% 4.4
2, 4, 6, Greaaat 87 16 18% 0.23 14 10 71% 7.6
2048 8661 4011 46% 0.00 3828 3283 86% 2.2
3-Sided Dice 2434 204 8% 0.00 399 143 36% 8.6
3D Printed Statues 10516 4824 46% 0.00 4430 3969 90% 2.0
3D Printer 762 140 18% 0.00 312 108 35% 8.6
4 thought 8833 2999 34% 0.00 2955 2470 84% 2.6
A Brief Gerrymander 291 53 18% 0.15 71 36 51% 8.6
A Classy Problem 9971 2494 25% 0.01 2212 1694 77% 4.5
A Different List Game 6938 486 7% 0.00 879 175 20% 9.2
A Different Problem 31799 11668 37% 0.00 10806 9351 87% 2.5
A Favourable Ending 1703 445 26% 0.00 409 317 78% 4.4
A Feast For Cats 2427 897 37% 0.00 584 496 85% 4.0
A Flea on a Chessboard 481 107 22% 0.01 119 87 73% 5.6
A Horse Shoe-In 78 8 10% 0.45 10 7 70% 6.7
A List Game 8661 2554 29% 0.00 2440 2049 84% 3.0
A Mazing! 2722 607 22% 0.09 294 221 75% 5.3
A Multiplication Game 790 272 34% 0.00 307 229 75% 4.7
A New Adventure 987 152 15% 0.00 165 111 67% 6.1
A New Alphabet 11207 5015 45% 0.00 4653 4300 92% 1.7
A+B Problem 8319 816 10% 0.03 1156 386 33% 8.3
A1 Paper 5466 1609 29% 0.00 1577 1246 79% 3.8
ABC 14079 6383 45% 0.00 6034 5491 91% 1.8
ACM Contest Scoring 7010 4363 62% 0.00 3860 3646 94% 1.5
AI Jeopardy 418 43 10% 0.02 43 31 72% 8.0
Aaah! 29307 13623 46% 0.00 12156 11342 93% 1.5
Ab Initio 1135 214 19% 0.09 173 106 61% 7.6
Abandoned Animal 2045 444 22% 0.03 512 371 72% 5.1
Above Average 9401 3839 41% 0.00 3755 3367 90% 2.0
Abstract Art 382 123 32% 0.00 100 77 77% 5.5
Abstract Painting 387 154 40% 0.00 145 112 77% 4.9
Absurdistan Roads II 637 220 35% 0.00 214 144 67% 6.8
Absurdistan Roads III 1548 448 29% 0.02 418 319 76% 5.5
Access Points 420 147 35% 0.01 139 108 78% 5.6
Add 'Em Up! 1043 288 28% 0.01 279 218 78% 4.0
Adding Words 10988 2604 24% 0.00 2503 1932 77% 4.0
Adjoin the Networks 2139 564 26% 0.00 473 379 80% 5.3
Administrative Difficulties 1314 275 21% 0.03 294 201 68% 6.3
Ads 606 34 6% 0.00 83 19 23% 6.5
Advanced Causal Measurements 114 36 32% 0.10 33 27 82% 6.1
Adventure Begins 268 86 32% 0.06 91 69 76% 4.7
Adventures in Moving -- Part IV 1370 313 23% 0.00 273 227 83% 4.6
Air Conditioned Minions 5235 1444 28% 0.00 1516 1148 76% 4.0
Airline Hub 1839 348 19% 0.01 374 215 57% 6.6
Airport Coffee 892 191 21% 0.09 180 128 71% 7.0
Airport Construction 3495 452 13% 0.02 377 202 54% 7.5
Airport Logistics 67 15 22% 0.00 22 15 68% 7.3
Airports 486 150 31% 0.11 130 94 72% 6.4
Akcija 7659 3425 45% 0.00 3102 2763 89% 2.0
Aladin 762 78 10% 0.10 126 30 24% 8.4
Alchemy 136 24 18% 0.02 36 21 58% 7.5
Alea iacta est 42 16 38% 0.19 19 15 79% 6.4
Alehouse 307 111 36% 0.03 93 68 73% 6.0
Alex and Barb 202 59 29% 0.00 81 54 67% 5.5
Alice in the Digital World 4865 1137 23% 0.01 1020 790 77% 4.2
Alien Codebreaking 242 14 6% 3.23 42 11 26% 9.2
Alien Numbers 2349 1204 51% 0.00 1184 1073 91% 2.1
All Different Directions 1364 563 41% 0.00 526 462 88% 2.6
All Friends 878 165 19% 0.00 158 80 51% 8.9
All Just A Dream 1983 449 23% 0.05 320 226 71% 6.3
All Kill 21 16 76% 0.00 15 14 93% 4.7
All Pairs Shortest Path 9374 1660 18% 0.00 1145 809 71% 5.6
All about that base 2911 1155 40% 0.00 1122 946 84% 2.9
All is Well 87 26 30% 0.03 24 22 92% 4.7
Allergy Test 545 143 26% 0.00 166 87 52% 7.5
Alloys 287 97 34% 0.00 101 85 84% 4.7
Almost Perfect 8212 1911 23% 0.00 2024 1597 79% 3.3
Almost Union-Find 6885 1224 18% 0.02 1121 643 57% 7.0
Alphabet 1617 812 50% 0.00 828 699 84% 3.2
Alphabet Animals 2046 638 31% 0.00 631 510 81% 3.3
Alphabet Spam 8344 5151 62% 0.00 4241 4073 96% 1.4
Alternative Bracket Notation 209 89 43% 0.00 95 79 83% 5.0
Altruistic Amphibians 445 122 27% 0.22 102 75 74% 4.7
Amalgamated Artichokes 4153 1854 45% 0.01 1640 1436 88% 2.7
Amanda Lounges 1524 451 30% 0.03 394 315 80% 5.4
Amazing Adventures 374 100 27% 0.02 113 80 71% 6.1
Amazing Race 340 91 27% 0.29 95 67 71% 7.5
Ambiguous Result 265 57 22% 0.02 88 54 61% 8.1
Amsterdam Distance 1560 695 45% 0.00 719 595 83% 2.9
An I for an Eye 773 189 24% 0.00 217 153 71% 5.0
An Industrial Spy 1705 902 53% 0.02 672 578 86% 3.2
Anagram Counting 3728 1427 38% 0.00 1385 1153 83% 3.1
Andrew the Ant 351 97 28% 0.05 104 81 78% 3.6
Animal Classification 1566 355 23% 0.03 308 203 66% 6.8
Another Brick in the Wall 3376 1678 50% 0.00 1614 1475 91% 1.9
Another Candies 8227 2255 27% 0.00 2297 1909 83% 2.5
Another Coin Weighing Puzzle 322 108 34% 0.00 93 80 86% 4.4
Another Dice Game 108 69 64% 0.00 67 58 87% 4.7
Another Query on Array Problem 1644 217 13% 0.05 337 152 45% 7.6
Antenna Placement 144 65 45% 0.00 46 37 80% 5.6
Anthony and Cora 930 248 27% 0.00 287 205 71% 5.2
Anthony and Diablo 3296 1143 35% 0.00 1150 999 87% 2.4
Antiarithmetic? 1572 288 18% 0.01 353 205 58% 7.2
Ants 3790 1683 44% 0.00 1361 1192 88% 2.5
Apaxiaaaaaaaaaaaans! 13470 8222 61% 0.00 7287 6976 96% 1.4
Apostrophe Catastrophe 112 26 23% 0.00 29 19 66% 6.8
Appalling Architecture 728 212 29% 0.00 184 152 83% 4.0
Apparatus 705 175 25% 0.01 144 106 74% 5.9
Apple Market 477 99 21% 0.07 122 62 51% 8.2